CuGaS2

semiconductor

· CuGaS2

CuGaS₂ is a ternary chalcogenide semiconductor compound combining copper, gallium, and sulfur in a tetragonal crystal structure. It is primarily investigated in photovoltaic research and photoelectrochemical applications due to its direct bandgap and tunable optoelectronic properties, offering potential advantages over binary alternatives like CdS or CuInS₂ in thin-film solar cells and light absorption devices. While not yet commercialized at scale, CuGaS₂ represents a promising material in the broader family of I-III-VI semiconductors for next-generation absorber or window layers in heterojunction devices and environmental sensing.

thin-film photovoltaicsphotoelectrochemical cellsoptoelectronic researchsolar absorber layersenvironmental sensingwide-bandgap window layers

Compliance & Regulations

?EAR?Conflict Free?RoHS?REACH?TSCA?Prop 65

Units:

si imperial

Property	Value	Unit	Conditions	Source
Band Gap(Eg)	2.400	eV	—

Verified Unverified Low confidence (<80%) Link to source

Regulatory Screening

Environmental

Export Control

RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.

CuGaS2

Electrical Properties

Regulatory Screening

Environmental

Export Control